An insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used to control populations of harmful pests, such as cockroaches or fleas.n insect growth regulator (IGR) is a substance (chemical) that inhibits the life cycle of an insect. IGRs are typically used to control populations of harmful pests, such as cockroaches or fleas.
Diet and supplementation are essential to the bone growing process. Including real, whole foods in your diet such as plentiful vegetables, fruits, nuts, cold-water fatty fish like salmon, and legumes. Plus, cutting out highly processed and sugary foods will provide your bones with what they need.
What Doctors Don't Tell You: Sports injuries-The best supplements for healing Share What Doctors Don't Tell You Â© (Volume 15, Issue 7) You may be able to speed recovery from sports injuries with the help of nutritional supplements. * Vitamin C is necessary to make collagen, the âglueâ that strengthens connective tissue.